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FILE NO. SVM-09030 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS-13SKHP-ES / RAS-13S2AH-ES January, 2009 FILE NO. SVM-09030 CONTENTS 1. 2. SPECIFICATIONS CONSTRUCTION VIEWS 2-1 2-2 Indoor Unit Outdoor Unit 3. WIRING DIAGRAM 4. SPECIFICATION OF ELECTRICAL PARTS 5. REFRIGERATION CYCLE DIAGRAM 6. CONTROL BLOCK DIAGRAM 7. OPERATION DESCRIPTION 7-1 7-2 7-3 7-4 7-5 7-6 7-7 7-8 7-9 7-10 7-11 7-12 8. INSTALLATION PROCEDURE 8-1 8-2 8-3 8-4 8-5 8-6 8-7 9. Remote Control Outline of Air Conditioner Control Description of Operation Mode Drescription of Safety and Reliability Prevention Function One-Touch Operation Hi POWER Operation QUIET Operation ECO Operation COMFORT SLEEP Operation FILTER Check lamp Auto Restart Function Self-Cleaning Operation Safety Cautions Installation Diagram of Indoor and Outdoor Units Installation Indoor Unit Outdoor Unit How to Set Remote Control Selector Switch Others TROUBLESHOOTING CHART 9-1 9-2 9-3 9-4 9-5 Troubleshooting Procedure Basic Check Items Primary Judgement Self-Diagnosis by Remote Control (Check Code) Troubleshooting Flowcharts 9-6 Troubleshooting for Remote Control (Including the Indoor P.C. Board) 10. PART REPLACEMENT 10-1 Indoor Unit 10-2 Outdoor Unit 11. EXPLODED VIEWS AND PARTS LIST 11-1 Indoor Unit (E-Parts Assy) 11-2 Indoor Unit 11-3 Outdoor Unit -1- FILE NO. SVM-09030 1. SPECIFICATIONS MODEL RAS-13SKHP-ES / RAS-13S2AH-ES ITEM Cooling Capacity kW Heating 220 V 240 V 3.75 3.82 Phase Power source V Power factor 1.19 % 98 96 A current Outdoor A Starting current Moisture removal Noise Refrigerant Indoor (H/M/L) 5.20 29 lit/h 2.0 dB kg mm 51 Æ12.7 Flare connection mm Æ6.35 Flare connection m 15* Maximum height difference m 6 1 RAS-13SKHP-ES Height mm 275 Width mm 790 Depth mm 205 kg 9 Evaporator type Finned tube Indoor fan type Cross flow fan High fan Air-flow volume Medium fan Low fan Fan motor output m3/h 620 3 m /h 520 550 m3/h 430 450 650 W 20 Air filter Honeycomb woven filter with PP frame OUTDOOR UNIT Height RAS-13S2AH-ES mm 550 Width mm 780 Depth mm 290 Net weight kg 38 Condenser type Finned tube Outdoor fan type Air-flow volume Fan motor output Compressor 50 0.95 Maximum length (One way) Net weight Dimensions 5.00 Capillary tube INDOOR UNIT Dimensions 5.20 R410A Interconnection Connection type pipe 95 41/38/35/33/31 Connection type Liquid side size 97 51 50 Refrigerant control Gas side size 1.18 5.00 Name of refrigerant Rated amount 1.14 0.15 A Outdoor (220 - 240 V) dB 4.26 50 1.15 Indoor 4.20 220 - 240 kW Running 240 V 1Æ Hz Power consumption 220 V Propeller fan m /h 3 2120 PA150X2C-4FT W 1100 Safety device Fuse, Overload relay Louver type Usable outdoor temperature range 2200 42 Model Output 2120 2200 W Automatic louver °C 15 ~ 43 −2− -10 ~ 24 FILE NO. SVM-09030 Note : 1 · Capacity is based on the following temperature conditions. Temperature Indoor unit inlet air temperature Outdoor unit inlet air temperature Condition JIS C9612 Cooling Heating (DB) 27°C 20°C (WB) 19°C 15°C (DB) 35°C 7°C (WB) 24°C 6°C Note : 2 *1 No need to charge extra refrigerant. -3 - FILE NO. SVM-09030 2. CONSTRUCTION VIEWS 2-1. Indoor Unit 790 Air filter 205 Air inlet 63 48 48 Heat exchanger 7 7 63 275 Front panel Knock out system 49 Knock out system 62 116 69 193 157 480 Installation plate hanger 56 19 Installation plate hanger Drain hose (0.50m) Connecting pipe (0.35m) (Flare 12.7mm) Connecting pipe (0.40m) (Flare 6.35mm) 235 215 621 84.5 235 215 Minimum distance to ceiling Minimum Minimum distance 275 to wall 170 or more 40 40 170 or more 190 distance to wall 84.5 Hanger 150 160.5 160.5 Center line Hanger 150 84.5 Installation plate outline -4- 26 Remote controller holder 45 Hanger 63 65 or more 84.5 125 Wireless remote controller FILE NO. SVM-09030 2.2. Outdoor Unit A 108 28 125 600 50 306 86 320 320 R15 36 320 306 Ø6 hole R5.5 Ø6 hole Ø11x14 hole A detail Drawing (Back leg) Ø 25 Drain outlet FAN-GUARD 2- Ø11 x 14 Hole (For Ø8 -Ø10 anchor bolt) 36 50 R15 B Detail Drawing (Front leg) Ø 436 COVER-PV 275 550 Z 290 90 600 90 320 342 69 Electrical part cover Liquid side (Flare Ø 6.35) 129 54 Z View 84 Gas side (Flare Ø12.7) Service port 600 100 or more Air intlel 321 600 or more 100 or more Air outlel 600 or more 4x Ø11 Long holes(For Ø 8- Ø 10 anchor bolt) −5− FILE NO. SVM-09030 3. WIRING DIAGRAM INDOOR OUTDOOR OUTDOOR TERMINAL BLOCK BLK 1(L) 2(N) 4 3 CHASSIS BLU BLU SOLENOID COIL BLK RED RED CAPACITOR RED COMPRESSOR WHI BLK FAN MOTOR PNK CAPACITOR WHI −6− FILE NO. SVM-09030 4. SPECIFICATION OF ELECTRICAL PARTS 4-1. Indoor Unit No. Parts name Type Specifications AC Motor with 145 ° C thermo fuse 10k W at 25°C 1 Fan motor (for indoor) 2 Thermo sensor (TA-sensor) 3 Micro Power Module (M01) µRM1260V 4 Microcontroller unit (IC30) TMP87CM40ANG 5 Heat exchanger sensor (TC-sensor) 6 Line filter (L01) 7 Bridge rectifier (DB01) 8 Capacitor (C03) 9 Fuse (F01) 10 Varistor (R06, R07) 11 Resistor (R01 ) 12 Louver motor MP24Z3T 12VDC 13 Relay (Comp., RY01) G4A-1A Rating 25A/AC250 V, 3-48VDC 14 Relay (Fan, RY03) G5NB-1A Rating 3A/AC250 V, 12VDC 15 Relay (Solenoide, RY04) G5NB-1A Rating 3A/AC250 V, 12VDC AFN-220-20-4D DC 390V, Secondary DC 12V 10k W at 25°C LC*SS11V-R06270 DB105G 27mH, 600mA 1A, 600 V EKMH401VSN470MP20S 47mF, 400 V BET 6.3A SR561K14DL RF-2TK5R6 T6.3A, 250VAC 560 V 5.6 W , 2 W 4-2. Outdoor Unit No. Parts name Type Specifications Output (Rated) 1100W, 2poles, 1 phase, 220 − 240V, 50Hz 1 2 Compressor Fan motor (for outdoor) PA150X2C-4FT Winding resistance (Ω) C-R C-S (at 20°C) 2.35 3.22 Output (Rated) 42W, 6poles, 1 phase, 220 − 240V, 50Hz WLF-240-42A Winding resistance (Ω) (at 20°C) 3 Running capacitor (for fan motor) DS451155NPQB AC 450V, 1.5µF 4 Running capacitor (for compressor) B32332I5306J063 AC 450V, 30µF 5 Solenoid coil (for 4-way valve) (for Heat pump model) STF-01AJ503H1 AC 220 − 240V, 50Hz -7- Red-Black White-Black 188 289 FILE NO. SVM-09030 5. REFRIGERATION CYCLE DIAGRAM Indoor unit Heat exchanger Cooling 0.39 m (Connecting pipe) Æ12.7 T1 0.49 m (Connecting pipe) Æ6.35 Heating Cross flow fan P O.D.:12.7 mm O.D.:6.35 mm Packed valve (Æ12.7) Packed valve (Æ6.35) Heating Cooling 4-way valve Heating Cooling Compressor PA150X2C-4FT Capillary tube Æ1.5 x 1100 l Accumulator Capillary tube Æ1.2 x 800 l Heat exchanger Cooling Heating ) means check points of Gas Leak. Surface temp. of heat exchanger interchanging pipe T1 (°C) Fan speed (indoor) 2.66 44.8 2.85~3.36 Low temperature Ambient temp. conditions DB/WB (°C) Indoor Outdoor High 20/15 7/6 45.9~53.2 Low 27/- 24/18 2.65 43.9 High 20/- -10/-10 Standard 1.03 10.9 High 27/19 35/24 Overload 1.16 14.4 High 32/23 43/26 Low temperature 0.78 2.5 Low 21/15 21/15 Standard Cooling Mark ( Standard pressure P (MPaG) 50Hz Heating Refrigerant R410A : 0.95 kg. Propeller fan Outdoor unit Overload*1 Note *1 · Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor) · During heating overload operation, a value for the high temperature limit control operation is included. -8- FILE NO. SVM-09030 6. CONTROL BLOCK DIAGRAM M.C.U. Main Unit Control Panel Heat Exchange sensor Operation Display Functions Timer Display Thermo. Sensor • Louver Control Current Sensor • 3-minutes Delay at Restart for Compressor (Compressor Current) Filter Sign Display Hi Power Sign Display Infrared Rays Signal Reciver Initiallizing Circuit Clock Frequency Oscillator Circuit Power Supply Circuit • Motor Revolution Control • Processing (Temperature Processing) • Timer Compressor ON/OFF Signal Noise Filter Louver ON/OFF Signal Louver Motor Relay Driver, Louver Driver Relay Compressor Outdoor Fan Motor Remote Control Operation ( ) Operation Mode Selection AUTO, COOL, DRY, HEAT, FAN ONLY Temperature Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver Auto Swing Louver Direction Setting ECO Hi power TIMER 1.3.5.9H COMFORT SLEEP QUIET −9− Relay RY03 RY01 REMOTE CONTROL Indoor Fan Motor Outdoor Fan 4-Way Valve ON/OFF ON/OFF Signal Signal Relay 220-240 V~, 50Hz PRE DEF. Sign Display RY04 4-Way Valve Infrared Rays FILE NO. SVM-09030 7. OPERATION DESCRIPTION 1 7-1. Remote control 7-1-1. Function of Push Putton TOSHIBA Infrared signal emitter Start/Stop button Mode select button (MODE) Temperature button (TEMP) Fan speed button (FAN) Swing louver button (SWING) Set louver button (FIX) On timer button (ON) Off timer button (OFF) Sleep timer button (SLEEP) Timer setup button (SET) Timer clear button (CLR) Memory and Preset button (PRESET) One Touch button (ONE-TOUCH) High power button (Hi-POWER) Economy button (ECO) Quiet button (QUIET) 14 19 Comfort sleep button (COMFORT SLEEP) Filter reset button (FILTER) 19 20 Clock Reset button (CLOCK) 21 Check button (CHK) 11 2 3 4 5 6 7 8 9 18 10 19 11 12 20 13 14 15 16 17 18 PRESET FAN 13 5 TEMP MODE ONE-TOUCH 2 3 COMFORT SLEEP QUIET 17 FIX SWING Hi-POWER ECO 8 10 21 − 10 − 18 15 16 6 7 4 TIMER CLR ON SLEEP SET CHK FILTER 12 9 OFF CLOCK 11 20 FILE NO. SVM-09030 7-1-2. Display of Remote Control All indications, except for the clock time indicator, are displayed by pressing the 1. Transmission mark This transmission mark indicates when the remote controller transmits signals to the indoor unit. 2. Mode indicator Indicates the current operation mode. : Heat, : Fan only) (A : Auto, : Cool, : Dry, 3. 4. Temperature indicator Indicates the temperature setting. (17°C to 30°C) 5. TIMER and clock time indicator The time setting for timer operation or the clock time is indicated. The current time is always indicated except during TIMER operation. 6. Hi-POWER indicator Indicates when the Hi-POWER operation starts. Press the Hi-POWER button to start and press it again to stop the operation. 7. (PRESET) indicator Flashes for 3 seconds when the PRESET button is pressed during operation. mark is shown when holding down the The button for more than 3 seconds while the mark is blinks. Press another button to turn off the mark. 8. ECO indicator Indicates when the ECO is in activated. Press the ECO button to start and press it again to stop operation. 9. A, B change indicator remote controller When the remote controller switching function is set, “B” appears in the remote controller display. (When the remote controller setting is “A”, there is no indication at this position.) FAN speed indicator Indicates the selected fan speed. AUTO or five fan speed levels , MED , MED+ (LOW , LOW+ HIGH ) can be shown. , Indicate Auto will be appear with Dry operation ( : Dry) only. 10 1 9 12 2 13 10 button. 10. Comfort sleep Indicates when comfort sleep is activaled. Press comfort sleep button to selectter 11. Quiet Indicates when quiet is activated. Press quiet button to start and press it again to stop operation. 11 12. One-Touch Indicates when one touch comfort is activated. Press one-touch button to start the operation. 6 8 3 7 13. Swing 4 Indicates when louver is swing. Press swing button to start the swing operation and press it again to stop the swing operation. 5 - 11 - FILE NO. SVM-09030 • Turning off the compressor and outdoor fan when the outdoor unit receives the shutdown command • Defrost control in heating operation (Temperature measurement by the Indoor heat exchanger, control the four-way valve and outdoor fan motor control) 7-2. Outline of Air Conditioner Control This is a fixed capacity type air conditioner, which uses a AC motor for an indoor fan. The AC motor drive circuit is mounted in the indoor unit. And electrical parts which operate the compressor and the outdoor fan motor, are mounted in the outdoor unit. The air conditioner is mainly controlled by the indoor unit controller. The controller operates the indoor fan motor based upon commands transmitted by the remote control and transfers the operation commands to the outdoor unit. The outdoor unit receives operation commands from the indoor unit, and operates the outdoor fan motor and the compressor. 7-2-1. Louver control (1) Vertical air flow louver Position of veritcal air flow louver is automatically controlled according to the operation mode. Besides, position of vertical air flow louver can be arbitrarily set by pressing [FIX] button. The louver position which is set by [FIX] button is stored in the microcomputer, and the louver is automatically set at the stored position for the next operation. (2) Swing If [SWING] button is pressed when the indoor unit is in operation, the vertical air flow louver starts swinging. When [SWING] button is pressed, it stops swinging. (1) Role of indoor unit controller The indoor unit controller receives the operation commands from the remote control and executes them. • Temperature measurement at the air inlet of the indoor heat exchanger by the indoor temperature sensor • Temperature measurement of the indoor heat exchanger by the heat exchanger sensor • Louver motor control • Indoor fan motor operation control • LED display control • Transferring of operation commands to the outdoor unit • Receiving of information of the operation status and judging of the information or indication of error 7-2-2. Indoor Fan Control The operation controls the fan speed at indoor unit side. The indoor fan (cross flow fan) is operated by the phase control induction motor. The fan rotates in 5 stages in MANUAL mode, and in 5 stages in AUTO mode, respectively. (Table 7-2-3) 1) When setting the fan speed to L, L+,M, M+ or H on the remote controller, the operation is performed with the constant speed shown in Table 7-2-1 and Table 7-2-2 Table (7-2-2) Heating T a b l e (7-2-1) Cooling (2) Role of outdoor unit controller The outdoor unit controller receives the operation commands from the indoor controller and executes them. • Compressor operation Operations according control to the commands • Operation control of from the indoor unit outdoor fan motor Indication Fan speed H (L + M) / 2 Med (M + H) / 2 High L L+ M M+ Fan speed Low (L + M) / 2 Med (M + H) / 2 High Indication L L+ M M+ H Low 2) When setting the fan speed to AUTO on the remote controller, revolution of the fan motor is controlled to the fan speed level show in Table 7-2-3 according to the setup temperature, room temperature, and heat exchanger temperature. Table 7-2-3 Indoor fan and air flow rate FAN TAP Cooling OPERATION MODE Fan only Model H M L L- H M L L- M L L- Dry Heat RAS-13SKHP-ES UH UH H M L rpm 1350 1300 1150 1100 950 Air flow volume (m3/h) 650 620 - 12 - L900 900 UL SL UL UL SL SL 850 750 650 550 500 350 310 260 240 550 520 450 430 430 400 FILE NO. SVM-09030 OFF OFF OFF ON Preset temp. °C OPERATION display lamp 0 (1) When [FAN] button is set to AUTO, the indoor fan motor operates as shown in Fig. 7-3-1. When [FAN] button is set to LOW, LOW+, MED, MED+ or HIGH, the motor operates with a constant air flow. (Room temp.) − (Preset temp.) ON Outdoor fan 7-3-1. Fan only operation ([MODE] button on the remote control is set to the fan only operation.) ON 0.5 (Room temp.) (3) Once the operation mode is set, it is memorized in the microcomputer so that the previous operation can be effected thereafter simply by pressing [ ] button. °C 4-way valve (2) When pressing [ ] button on the remote control, receiving beep sounds from the indoor unit, and the next operation is performed together with opening the vertical air flow louver. (1) The compressor, 4-way valve, outdoor fan and operation display lamp are controlled as shown in Fig. 7-3-2. Compressor (1) When turning on the breaker, the operation lamp blinks. This means that the power is on (or the power supply is cut off.) 7-3-2. Cooling operation ([MODE] button on the remote control is set to the cooling operation.) (Preset temp.) 7-3. Description of Operation Mode Fig. 7-3-2 +3 M+ +2.5 *1 +2 *2 (2) When [FAN] button is set to AUTO, the indoor fan motor operates as shown in Fig. 7-3-3. When [FAN] button is set to LOW, LOW+, MED, MED+ or HIGH, the motor operates with a constant air flow. +1.5 (Room temp.) − (Preset temp.) *3 +1 +0.5 Preset temp. 0 (Preset temp.: 24 °C) NOTE 1 : *1 : Fan speed = (M + − L) x 3/4 + L *2 : Fan speed = (M + − L) x 2/4 + L *3 : Fan speed = (M + − L) x 1/4 + L Preset temp. 2 : The Hi Power, ECO and COMFORT SLEEP operation can not be set (Linear approximation from M+ and L) °C +3 M+ +2.5 *1 +2 +1.5 *2 *3 +1 +0.5 0 -0.5 NOTE1 : *1 : Fan speed = (M + − L) x 3/4 + L *2 : Fan speed = (M + − L) x 2/4 + L *3 : Fan speed = (M + − L) x 1/4 + L (Linear approximation from M+ and L) Fig. 7-3-1 Setting of air flow [FAN:AUTO] Fig. 7-3-3 Setting of air flow [FAN:AUTO] - 13 - FILE NO. SVM-09030 (1) The compressor, 4-way valve, outdoor fan and operation display lamp are controlled as shown in Fig. 7-3-6. +1 OPERATION display lamp Outdoor fan 0.5 ON (Room temp.) OFF 4-way valve Compressor OFF OFF ON OFF ON ON Outdoor fan 0 ON OPERATION display lamp Preset temp. OFF 0 4-way valve +2 Preset temp. Compressor (Room temp.) +3 °C (Preset temp.) °C ON:5min. ON:6min. OFF:5min. OFF:4min. (1) The compressor, 4-way valve, outdoor fan and operation display lamp are controlled as shown in Fig. 7-3-4. ON:5min. ON:6min. OFF:5min. OFF:4min. 7-3-4. Heating operation ([MODE] button on the remote control is set to the heating operation.) (Preset temp.) 7-3-3. Dry operation ([MODE] button on the remote control is set to the dry operation.) Fig. 7-3-4 Fig. 7-3-6 (2) The microprocessor turns the compressor on and off at the regular intervals (4 to 6 minutes). While the compressor is turning off, the indoor fan motor operates in the SUPER LOW position. The pattern of operation depending on the relation between room temperature and preset temperatures is shown in Fig. 7-3-5. (2) When [FAN] button is set to AUTO, the indoor fan motor operates as shown in Fig. 7-3-7. When [FAN] button is set to LOW, LOW+, MED, MED+ or HIGH, the motor operates with a constant air flow. (Room temp.) − (Preset temp.) Preset temp. Room temp. Preset temp.+1 Preset temp. Compressor ON ON ON ON Outdoor fan OFF Indoor fan L. *S.L. OFF L. S.L. OFF L. S.L. L. °C 0 -0.5 -1 -1.5 -2 L *1 *2 M+ -5.0 -5.5 H [FAN AUTO] *1 : Fan speed = (M + − L) x 1/4 + L *2 : Fan speed = (M + − L) x 2/4 + L *3 : Fan speed = (M + − L) x 3/4 + L (Calculated with Linear approximation from M+ and L+) *Super Low Fig. 7-3-5 (3) [FAN] button on the remote control is set to AUTO only. (4) The ECO, COMFORT SLEEP, QUIET and Hi POWER operations can not be set. - 14 - Fig. 7-3-7 FILE NO. SVM-09030 (3) The indoor heat exchanger restricts revolving speed of the fan motor to prevent a cold draft. The upper limit of the revolving speed is shown in Fig. 7-3-8 Fan s peed AUT O Tc 46 45 34 33 33 32 21 20 *A+0 *A+0 *A-8 *A-8 F an s peed MANUAL L-H (Up to s etting s peed) Normal AUT O Line-approximate H and SL with T c. Line-approximate H and SL with T c. SL SL Stop Stop 7-3-5. Automatic operation ([MODE] button on the remote control is set to the automatic operation.) (1) One of 3 operations (Cooling, Fan only or Heating) is selected according to difference between the preset temperature and the room temperature at which the automatic operation has started, as shown in Fig. 7-3-9. The Fan only operation continues until the room temperature reaches a level at which another mode is selected. (2) Temporary Auto When the [RESET] button on the indoor unit is pushed, the preset temperature is fixed at 24°C and the indoor unit is controlled as shown in Fig. 7-3-9. Fan s peed MANUAL or AUTO in s t a r t i n g Fan s peed AUTO in s t a b i l i t y * No limitation while fan speed MANUAL mode is in stability. * A: When Tsc ≥ 24, A is 24, and when Tsc < 24, A is Tsc Tsc: Set value [In starting and in stability] In starting FAN AUTO FAN Manual In stability • When 12 to 25 minutes • Until 12 minutes passed after opeartion passed after operation start and room temp. start is than (set 3°C ) • When 12 to 25 minutes between preset passed after operation • When 25 minutes or start and room temp. more passed after is 3°C or lower than operation start set temp. • Room temp. < Set temp.–4°C • Room temp. temp. –3.5°C (Room temp.) − (Preset temp.) °C Cooling operation 0 Fan only operation -1 Heating operation Set Fig. 7-3-9 Fig. 7-3-8 Cold draft preventing control (4) In order to prevent cold draft when compres s or during heating operation.T hen louver will move to upper pos ition and fan s peed will reduce or OF F . - 15 - 7-4. Drescription of Safety and Reliability Prevention Function FILE NO. SVM-09030 7-4-1. Low-Temperature Limit Control 7-4-3. Defrost Operation The microcontroller detects the indoor heat exchanger temperature to prevent the indoor heat exchanger from freezing. The compressor and outdoor fan motor are controlled as shown in Fig. 7-4-1. During the heating operation, the outdoor heat exchanger temperature goes down and sometimes it is frozen. In this case, the air conditioner stops the heating operation and starts the defrost operation to melt ice. Condition to start the defrost operation The defrost operation starts whichever below conditions are satisfied. (°C) 6 Compressor Outdoor fan (1) When the cumulative compressor operating time is longer than 40 or 90 minutes and difference between the indoor heat exchanger temperature and the room temperature is less than the specified value. (This value is decided by the microprocessor.) (Control example is shown in Fig. 7-4-3. In case of B or C, the defrost operation starts.) ON Less than 2°C continues for 5 minutes OFF 2 Fig. 7-4-1 (2) When the current limit control or the high temperature limit control is performed for total of 90 minutes. 7-4-2 High-Temperature Limit Control The microcontroller detects the indoor heat exchanger temperature to prevent pressure of a refrigerating cycle from increasing excessively. The compressor and outdoor fan motor are controlled as shown in Fig. 7-4-2. Heat exchanger temp. Compressor Outdoor fan OFF OFF ON OFF ON ON (°C) 60 Indoor heat exchanger temp - Room temp Heat exchanger temperature D A B C Fig. 7-4-3 (Indoor fan speed : M) 53 52 Fig. 7-4-2 - 16 - Cumulative compressor operating time FILE NO. SVM-09030 Defrost operation time control <In case of B> <In case of C> (1) The heating operation is performed for at least 40 minutes. (1) The heating operation is performed for at least 90 minutes. (2) The maximum defrost operating time is 6 minutes. (2) The defrost operating time is 10 minutes. The defrost operating time for the 4th cycle is 10 minutes. (When the outdoor temperature is Ending condition at defrost operation very low, however, the defrost operating time is (1) When the compressor current becomes 5.40A or 10 minutes.) more during defrost operation, the defrost operation stops and the heating operation restarts. (The current sensor detects the compressor current.) Max 6 minutes (2) The defrost operation continues for at most 6 minutes or 10 minutes. Defrost Heating minutes 40 Defrost Heating minutes 40 Defrost Heating minutes 40 Defrost Heating minutes 40 DEFROST LAMP : · During defrost operation, the PRE-DEF. lamp is on and the indoor and outdoor fans are off. · The compressor start protection timer is interlooked with the PRE-DEF. lamp. So the PRE-DEF. Lamp is off (the fans stop) for about 3 minutes after the [ ] button is turned on. When the compressor is turned on, the PRE-DEF. lamp comes on. After the heat ex-changer is preheated to about 24°C or higher, the PRE-DEF. Lamp goes off, and the indoor fan starts. 10 minutes 1 cycle Fig. 7-4-4 - 17 - FILE NO. SVM-09030 7-4-4. Current Limit Control The microcontroller detects the input current so as to prevent it exceeds a specified value by means of controlling the outdoor fan control as described in (1) and (2). (1) Current limit control (Cooling operation) Control is performed as shown below by detecting the compressor operating current with a current sensor (C.T). Input current 11.0A I4 10.0A I3 Compressor Outdoor fan More than I4 continues for 3 seconds OFF More than I3 continues for 5 minutes OFF ON Fig. 7-4-5 (2) Current limit control (Heating operation) Control is performed as shown in Fig. 7-4-6 Input current 11.0A I4 10.0A I3 6.45A I2 5.40A I1 Compressor Outdoor fan More than I4 continues for 3 seconds OFF More than I3 continues for 5 minutes OFF ON OFF ON Fig. 7-4-6 - 18 - FILE NO. SVM-09030 7-5. One-Touch Operation One touch comfort is the fully automated operation that is set according to the preferable condition in a region. Fan Operation 0 L *AUTO/L AUTO 12 25 Time after operation starts (min) *AUTO/L : Fan operates depends on the setting temperature and room temperature. During the One Touch Comfort mode if the indoor unit receives any signal with other operation mode, the unit will cancel the comfort mode and operates according to the signal received. Operation description When an indoor unit receives "One Touch Comfort Signal" from the remote controller, the indoor unit operates as following. 1) 2) 3) 4) 5) Air conditioner starts to operation when the signal is received, even if the air conditioner was OFF. Operation mode is set according to room temperature, the same as AUTO mode. Target temperature is 24ºC. Louver position is set as stored position. Fan is controlled as diagrom. - 19 - FILE NO. SVM-09030 7-6. Hi POWER Operation ([Hi POWER] button on the remote control is pressed.) 7-7. QUIET Operation When the [QUIET] button is pressed, the fan of the indoor unit will be restricted the revolving speed at speed L− until the [QUIET] button is pressed once again (cancel Quiet mode). When [Hi POWER] button is pressed while the indoor unit is in Auto, Cooling or Heating operation, Hi POWER mark is indicated on the display of the remote Quiet mode is the system which, control the revolving control and the unit operates as follows. speed of indoor fan to work constantly at lower than speed L. In addition, noise level of indoor unit is less (1) Automatic operation than usual. · The indoor unit operates in according to the current operation. Remarks : (2) Cooling operation 1. Quiet mode is unable to work in dry mode. • The setting temperature drops 3°C. 2. Quiet mode is appropriate to work with less cooling (The value of the setting temperature on the load and less heating load condition. Because of the remote control does not change.) fan speed L− may cause not enough the cooling • If the room temperature is higher than the capacity or heating capacity. setting temperature by 3.5°C or more, the horizontal louver moves to the Hi POWER 7-8. ECO Operation. position automatically. Then when the room Cooling operation temperature is 1°C less than the setting · The preset temperature will increase 1ºC after the temperature the horizontal louver returns ECO mode has operated for 1 hour and the temperature automatically. will increase another 1ºC after the ECO mode has • FAN speed : [AUTO] operated for 2 hour. (the value of the preset temperature If the room temperature is higher than the on the remote control does not change.) setting temperature by 3.5°C or more, the air conditioner operates at maximum airflow level. · The indoor fan speed is depend on presetting and can If the room temperature is higher than the change every speed after setting ECO operation. setting temperature by less than 3.5°C, the air Heating operation conditioner operates at normal airflow level. · The preset temperature will drop down 1ºC after the • FAN speed : One of 5 levels If the room temperature is higher than the ECO mode has operated for 1 hour and the temperature setting temperature by 3.5°C or more, the air will drop down another 1ºC after the ECO mode has conditioner operates at higher consecutive operated for 2 hour. (the value of the preset temperature airflow level. If the room temperature is higher on the remote control does not change.) than the setting temperature by less than 3.5°C, · The indoor fan speed is depend on presetting and can the air conditioner operates at normal airflow change every speed after setting ECO operation. level. · The indoor unit's fan speed level increase 1 tap 7-9. COMFORT SLEEP Operation (3) Heating operation · The preset temperature increases 2 °C, (The value of the preset temperature on the remote control does not change.) The indoor unit operates in normal heating · mode except the preset temperature is higher (+2°C). Cooling operation · The preset temperature will increase 1ºC after the comfort sleep mode has operated for 1 hour and the temperature will increase another 1ºC after the comfort sleep mode has operated for 2 hour. (the value of the preset temperrature on the remote control does not change) · Press the [COMFORT SLEEP] button to select this · The indoor unit's fan speed level increase 1 tap function. The comfort sleep function will be activate togetther with Auto shut down function. Period of (4) The Hi POWER mode can not be set in Dry or operation time can be select by re-press the Fan only operation. [COMFORT SLEEP] button. The period of operation time are follows. (5) The Hi POWER mode can memorize with timer function. 1H 3H 5H 9H Cancel - 20 - FILE NO. SVM-09030 Heating mode · The preset temperature will drop down 1ºC after the comfort sleep mode has operated for 1 hour and the temperature will decrease another 1ºC after the comfort sleep mode has operated for 2 hour. (The value of the preset temperature on the remote control does not change.) · Press the [COMFORT SLEEP] button to select this function and period of operation time same as cooling mode operation. The principles of comfort sleep mode are: · Quietness for more comfortable. When room temperature reach setting temperature. · Save energy by changing room temperature automatically. 7-10. FILTER Check lamp When the elapsed time reaches 1000 hours after air purifier operation, the FILTER indicator lights. After cleaning the filters, turn off the FILTER indicator. How to Turn Off FILTER Indicator Press [RESET] button on the indoor unit or press filter button on the remote control. NOTE : If [RESET] button is pushed while the FILTER indicator is not lit, the indoor unit will start the automatic operation. When you want a temporary operation while the FILTER lamp lights, press [RESET] button to turn off the FILTER lamp. · The air condition can shut down by itself automatically. Remarks : Comfort sleep mode will not operate in dry mode and fan only mode. − 21 − FILE NO. SVM-09030 7-11. Auto Restart Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down. The operation will resume without warning three minutes after power is restored. This function is not set to work when shipped from the factory. Therefore it is necessary to set it to work. 7-11-1. How to Set the Auto Restart Function To set the auto restart function, proceed as follows: The power supply to the unit must be on ; the function will not set if the power is off. Press the [RESET] button located in the center of the front panel continuously for three seconds. The unit receives the signal and beeps three times. The unit then restarts operating automatically in the event of power supply being accidentally shut down. • When the unit is standby (Not operating) Operation Motions Press [RESET] button for more than three seconds. (Less than 10 seconds) The unit is on standby. ↓ The unit starts to operate. ↓ The green indicator is on. After approx. three seconds, The unit beeps three times and continues to operate. The green indicator blinks for 5 seconds. If the unit is not required to operate at this time, press [RESET] button once more or use the remote controller to turn it off. RESET • When the unit is in operation Operation Motions Press [RESET] button for more than three seconds. (Less than 10 seconds) The unit is in operation. The green indicator is on. ↓ The unit stops operating. ↓ RESET button The green indicator is turned off. After approx. three seconds, The unit beeps three times. The green indicator blinks for 5 seconds. If the unit is required to operate at this time, press [RESET] button once more or use the remote controller to turn it on. RESET − 22 − FILE NO. SVM-09030 7-11-2. How to Cancel the Auto Restart Function To cancel auto restart function, proceed as follows : Repeat the setting procedure : the unit receives the signal and beeps three times. The unit will be required to be turned on with the remote controller after the main power supply is turned off. • When the system is on stand-by (not operating) Operation Motions Press [RESET] button for more than three seconds. (Less than 10 seconds) The unit is on standby. ↓ The unit starts to operate. ↓ The green indicator is on. After approx. three seconds, The unit beeps three times and continues to operate. If the unit is not required to operate at this time, press [RESET] button once more or use the remote controller to turn it off. RESET • When the system is operating Operation Motions Press [RESET] button for more than three seconds. (Less than 10 seconds) The unit is in operation. The green indicator is on. ↓ The unit stops operating. ↓ The green indicator is turned off. After approx. three seconds, The unit beeps three times. If the unit is required to operate at this time, press [RESET] button once more or use the remote controller to turn it on. RESET 7-11-3. Power Failure During Timer Operation When the unit is turned off because of power failure during timer operation, the timer operation is cancelled. In that case, set the timer operation again. NOTE : The Everyday Timer is reset while a command signal can be received from the remote controller even if it stopped due to a power failure. − 23 − FILE NO. SVM-09030 7-12. Self-Cleaning Operation 1. Purpose The Self-Cleaning operation is to minimize the growth of mold, bacteria etc. by running the fan and drying so as to keep the inside of the air conditioner clean. Unit now performing cooling or dry operation Press “STOP” button Only timer indicator lights, and Self-Cleaning operation starts Self-Cleaning operation When the cooling or dry operation shuts down, the unit automatically starts the Self-Cleaning operation which is then performed for the specified period based on duration of the operation which was performed prior to the shutdown, after which the Self-Cleaning operation stops. (The Self-Cleaning operation is not performed after a heating operation.) 2. Operation 1) When the stop signal from the remote controller or timer-off function is received, only the timer indicator light. Time set now elapses 2) The period of the Self-Cleaning operation is determined by the duration of the operation performed prior to the reception of the stop code. Operation stops 3) After the Self-Cleaning operation has been performed for the specified period, the unit stops operation. • During Self-Cleaning operations: The louver opens slightly. The indoor fan operates continuously at a speed of SL rpm. Self-Cleaning operation times Operation time Cooling: Auto (cooling) Dry Self-Cleaning operation time Up to 10 minutes No Self-Cleaning operation performed (0 minutes) 10 minutes or longer 20 mins. Heating: Auto (heating) Auto (fan only) No Self-Cleaning operation performed Shutdown • To stop an ongoing Self-Cleaning operation at any time Press the start/stop button on the remote controller twice during the Self-Cleaning operation. [After pressing the button for the first time, press it for the second time without delay (within 10 minutes)]. − 24 − FILE NO. SVM-09030 7-12-1. Self-Cleaning diagram Operation display ON OFF OFF FCU fan ON rpm is depend on presetting. ON (SL) OFF FCU louver OPEN OPEN (12.7º) CLOSE Timer display ON or OFF depend on presetting of timer function. ON ON or OFF depend on presetting of timer function. Compressor ON or OFF depend on presetting per room temperature. OFF OFF ON or OFF depend on presetting per room temperature. OFF OFF Cool mode or dry mode operation more than 10 mins. Self-Cleaning mode operate 20 mins. CDU fan Turn off by remote controller or timer-off function. 7-12-2. Self-Cleaning function release How to cencel Self-Cleaning function To cancel the Self-Cleaning function, proceed as follows: • Press [RESET] button one time or use remote control to turn on air conditioner. Display will show in green color. • Hold down the [RESET] button for more than 20 seconds. (The air conditioner will stop suddenly when the [RESET] is pressed but keep holding it continue. The will beep 3 times in the first 3 seconds but it is not related to Self-Cleaning function) • After holding about 20 seconds, the air conditioner will beep 5 times without any blinking of display. • The Self-Cleaning Operation had been cancelled. Remark Presetting of Self-Cleaning function above, AUTORESTART function had been cancelled. To set AUTO-RESTART again. Operation time Automatically turn-off. How to set Self-Cleaning function To set the Self-Cleaning function, proceed as follows. • Press [RESET] button one time or use remote control to turn on air conditioner. Display will show in green color. • Hold down the [RESET] button for more than 20 seconds. (The air conditioner will stop suddenly when the [RESET] is pressed but keep holding it continue. Then will beep 3 times is the first 3 seconds but it is not related to Self-Cleaning function) • After holding about 20 seconds, the air conditioner will beep 5 times and OPERATION display blinks 5 times. • The Self-Cleaning function had been set. Remark Presetting of Self-Cleaning function above, AUTORESTART function had been cancelled. To set AUTO-RESTART again. RESET − 25 − FILE NO. SVM-09030 8. INSTALLATION PROCEDURE 8-1. Safety Cautions For general public use Power supply cord of parts of appliance for Outdoor use shall be at least polychloroprene sheathed flexible cord (design H07 RN-F), or cord designation 245 IEC66.(Shall be installed in accordance with national wiring regulations) CAUTION To Disconnect the Appliance from the Main Power Supply This appliance must be connected to the main power supply by means of a circuit breaker or a switch with a contact separation of at least 3 mm in all poles. If this is not possible, a power supply plug with earth must be used. This plug must be easily accessible after installation. The plug must be disconnected from the power supply socket in order to disconnect the appliance completely from the mains. DANGER • FOR USE BY QUALIFIED PERSONS ONLY. • TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE ALL POWER SWITCHES ARE OFF. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK. • CONNECT THE CONNECTING CABLE CORRECTLY. IF THE CONNECTING CABLE IS CONNECTED WRONGLY, ELECTRIC PARTS MAY BE DAMAGED. • CHECK THE EARTH WIRE THAT IT IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION. • DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS. FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION. • TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD, PLACE THE UNIT WELL AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEATORS, FURNACE, STOVES, ETC. • WHEN MOVING THE AIR-CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN, BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT (R22) WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CYCLE. IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT, THE GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTINGLY CAUSES BURST OF THE PIPE AND INJURIES ON PERSONS. • IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK, IMMEDIATELY LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING ELSE, IT CAUSES GENERATION OF POISONOUS GAS. WARNING • Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock switches. • Do not install in a place which cannot bear the weight of the unit. Personal injury and property damage can result if the unit falls. • Before doing the electrical work, attach an approved plug to the power supply cord. Also, make sure the equipment is properly earthed. • Appliance shall be installed in accordance with national wiring regulations. If you detect any damage, do not install the unit. Contact your TOSHIBA dealer immediately. CAUTION • Exposure of unit to water or other moisture before installation could result in electric shock. Do not store it in a wet basement or expose to rain or water. • After unpacking the unit, examine it carefully for possible damage. • Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify the noise level of the unit or where noise and discharged air might disturb neighbors. • To avoid personal injury, be careful when handling parts with sharp edges. • Please read this installation manual carefully before installing the unit. It contains further important instructions for proper installation. − 26 − FILE NO. SVM-09030 REQUIREMENT OF REPORT TO THE LOCAL POWER SUPPLIER Please make absolutely sure that the installation of this appliance is reported to the local power supplier before installation. If you experience any problems, or if the installation is not accepted by the supplier, the service agency will take adequate countermeasures. − 27 − FILE NO. SVM-09030 170 mm 65 mm or more 8-2. Installation Diagram of Indoor and Outdoor Units or m ore Hook 1 Installation For the rear left and left piping plate Wall Hoo k 270 mm or m ore Air (A 5 tta ch to th e fr Super Oxi Deo filter Insert the cushion between the indoor unit and wall, and tilt the indoor unit for better operation. filte r Do not allow the drain hose to get slack. on tp an el. ) Cut the piping hole sloped slightly. Shield pipe 6 Super Sterilizer filter Make sure to run the drain hose sloped downward. 8 Pan head wood screw 3 4 Remote control holder The auxiliary piping can be connected to the left, rear left, rear right, right, bottom right or bottom left. Batteries 2 600 mm or more Vinyl tape Apply after carrying out a drainage test. Wireless remote control 100 mm or Right Rear right ore 100 mm Bottom right or m Saddle mo re re 600 mm o o rm 600 Extension drain hose (Not available, provided by installer) mm or Rear left Left Bottom left Insulate the refrigerant pipes separately with insulation, not together. mo re 6 mm thick heat resisting polyethylene foam Before installing the wireless remote controller A • Loading Batteries 1. Remove the battery cover. 2. Insert 2 new batteries (AAA type) following the (+) and (− ) positions. C L 3 Batteries 2 Wireless remote controller − 28 − FILE NO. SVM-09030 8-3. Installation 8-3-1. Optional installation parts Part Code Parts name Q'ty A Refrigerant piping Liquid side : Æ 6.35 mm Gas side : Æ12.70 mm One each B Pipe insulating material (polyethylene foam, 6 mm thick) C Putty, PVC tapes 1 One each <Fixing bolt arrangement of outdoor unit> 600 mm Air inlet 86 mm 320 mm 108 mm Air outlet Drain outlet Fig. 8-3-1 · Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind. · Use Æ8 mm or Æ10 mm anchor bolts and nuts. – 29 – FILE NO. SVM-09030 8-3-2. Accessory and installation parts Part No. Part name (Q’ty) 1 Part No. Part name (Q’ty) 4 Installation plate x 1 2 8 Others Pan head wood screw ∅3.1 x 16 s x 2 Super Oxi Deo filter x 1 6 Battery x 2 Mounting screw ∅4 x 25 s x 6 Remote control holder x 1 Wireless remote control x 1 Part name (Q’ty) 7 5 3 Part No. 9 Drain nipple* x 1 Super Sterilizer filter x 1 Name Owner’s manual ! Installation manual Cap water proof x 2 The part marked with asterisk (*) is packaged with the outdoor unit. − 30 − FILE NO. SVM-07037-1 8-4. Indoor Unit 8-4-2. Cutting a hole and mounting installation 8-4-1. Installation place plate • A place which provides the spaces around the indoor unit as shown in the diagram. <Cutting a hole> • A place where there is no obstacle near the air inlet When installing the refrigerant pipes from the rear. and outlet. • A place that allows easy installation of the piping to the outdoor unit. • A place which allows the front panel to be opened. • The indoor unit shall be installed as top of the indoor unit comes to at least 2 m height. Also, it must be avoided to put anything on the top of the indoor unit. Pipe hole CAUTION ∅65 mm • Direct sunlight to the indoor unit’s wireless receiver should be avoided. • The microprocessor in the indoor unit should not be too close to RF noise sources. (For details, see the owner’s manual.) Indoor unit • A place where there are no obstacles such as a curtain that may block the signal from the indoor unit. • Do not install the remote control in a place exposed to direct sunlight or close to a heating source, such as a stove. • Keep the remote control at least 1 m apart from the nearest TV set or stereo equipment. (This is necessary to prevent image disturbances or noise interference.) • The location of the remote control should be determined as shown below. (Side view) (Top view) 1. After determining the pipe hole position on the mounting plate (A), drill the pipe hole (∅65 mm) at a slight downward slant to the outdoor side. NOTE • When drilling a wall that contains a metal lath, wire lath or metal plate, be sure to use a pipe hole brim ring sold separately. <Mounting the installation plate> Anchor bolt holes 62 Hook 82.5 170 Indoor unit 45 ° 85 45° io n ra e ng Reception Remote control range pt ce Re ° 75 Fig. 8-4-2 2 m or more from floor <Remote control> 100 mm Remote control 1 Pipe hole Hook Indoor unit Hook Thread Pipe hole Weight 7 Mounting screw Fig. 8-4-1 Fig. 8-4-3 − 31 − Installation plate FILE NO. SVM-09030 <When the installation plate is directly mounted on the wall> 1. Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit. 2. To mount the installation plate on a concrete wall with anchor bolts, utilize the anchor bolt holes as illustrated in the above figure. 3. Install the installation plate horizontally in the wall. 8-4-3. Electrical work 1. The supply voltage must be the same as the rated voltage of the air conditioner. 2. Prepare the power source for exclusive use with the air conditioner. CAUTION • This appliance can be connected to the mains in either of the following two ways. (1) Connection to fixed wiring: A switch or circuit breaker which disconnects all poles and has a contact separation of at least 3 mm must be incorporate in the fixed wiring. An approved circuit breaker or switches must used. (2) Connection with power supply plug: Attach power supply plug with power cord and plug it into wall outlet. An approved power supply cord and plug must be used. CAUTION When installing the installation plate with a mounting screw, do not use the anchor bolt hole. Otherwise the unit may fall down and result in personal injury and property damage. Installation plate <Keep horizontal direction> Anchor bolt NOTE • Ensure all wiring is used within its electrical rating. Projection 15 mm or less 5 mm dia. hole Power source 7 Mounting screw s ∅4 x 25s Clip anchor (local parts) 50Hz, 220 − 240 V Single phase Maximum running current 12A Plug socket & fuse rating 16A Power cord Fig. 8-4-4 CAUTION Failure to firmly install the unit may result in personal injury and property damage if the unit falls. • In case of block, brick, concrete or similar type walls, make 5 mm dia. holes in the wall. • Insert clip anchors for appropriate 7 mounting screws. NOTE • Secure four corners and lower parts of the installation plate with 4 to 6 mounting screws to install it. − 32 − 2 1.5 mm or more FILE NO. SVM-09030 Wiring Connection Stripping length of the power supply cord How to connect the power cord Earth line For the air conditioner that does not have power cord, connect a power cord to it as mentioned below (1) Open the air inlet grille upward. (2) Remove the two screws securing the front panel. (3) Slightly open the lower part of the front panel, then pull theupper part of the front panel toward you to 10 mm 40 mm N L 10 mm 30 mm remove it from the rear plate. Fig. 8-4-6 (4) After removing the front panel, remove the power cord connect cover and the cord clamp. (5) Connect and secure the power supply cord and secure the cord clamp and the power cord connect cover. (6) Put the power supply cord through the notch. (7) Be sure to smooth the notch with a NOTE • • Use stranded wire only. Wire type : H07RN-F or more CAUTION Air inlet grille For the air conditioner with the power supply cord • If the power supply cord is damaged, it must be replaced by the manufacturer, the service agency, or another similarty qualitied person in order to avoid hazard. Front panel 1 2 3 Earth line Terminal block Cord clamp Screw Screw Taking out the power cord Put the power supply cord through the notch. Screw Power supply cord Power cord connect cover Fig. 8-4-5 − 33 − Notch FILE NO. SVM-09030 Cord clamp 8-4-4. Wiring connection <How to connect the connecting cable> Terminal cover Wiring of the connecting cable can be carried out without removing the front panel. 1. Remove the air inlet grille. Open the air inlet grille upward and pull it toward you. 2. Remove the terminal cover and cord clamp. 3. Insert the connecting cable (according to the local cords) into the pipe hole on the wall. 4. Take out the connecting cable through the cable slot on the rear panel so that it protrudes about 15 cm from the front. 5. Insert the connecting cable fully into the terminal block and secure it tightly with screws. 6. Tightening torque : 1.2 N·m (0.12 kgf·m) 7. Secure the connecting cable with the cord clamp. 8. Fix the terminal cover, rear plate bushing and air inlet grille on the indoor unit. Terminal block Screw Connecting cable abo ut 1 5 Earth line cm Screw Screw Connecting cable Fig. 8-4-5 Earth line 80 mm 10 mm 70 mm 10 mm CAUTION • Be sure to refer to the wiring system diagram labeled inside the front panel. • Check local electrical cords and also any specific wiring instructions or limitations. 10 mm 50 mm Stripping length of the connecting cable Fig. 8-4-6 NOTE • Use stranded wire only. • Wire type : H07RN-F or more <How to install the air inlet grille on the indoor unit> • When attaching the air inlet grille, the contrary of the removed operation is performed. Fig. 8-4-7 − 34 − FILE NO. SVM-09030 8-4-5. Piping and drain hose installation How to fix the drains cap 1) Insert hexagonal wrench (4 mm) in a center head. <Piping and drain hose forming> * Since dewing results in a machine trouble, make sure to insulate both the connecting pipes. (Use polyethylene foam as insulating material.) 4 mm Left Bottom right Right Piping preparation Bottom left Die-cutting Front panel slit Rear left Changing drain hose Rear right Fig. 8-4-10 2) Firmly insert drains cap. No gap Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap. Application causes deterioration and drain leakage of the plug. 1. Die-cutting Front panel slit Cut out the slit on the leftward or right side of the front panel for the left or right connection and the slit on the bottom left or right side of the front panel for the bottom left or right connection with a pair of nippers. 2. Changing drain hose For leftward connection, bottom leftward connection and rear leftward connection’s piping, it is necessary to change the drain hose and drain cap. How to remove the drains cap Clip drain cap by needle-nose plier, and pull out. Insert a hexagon wrench (4 mm) Fig. 8-4-11 CAUTION Firmly insert the drain hose and drain cap; otherwise, water may leak. <In case of right or left piping> • After scribing slits of the front panel with a knife or a making-off pin, cut them with a pair of nippers or an equivalent tool. Fig. 8-4-8 How to install the drain hose • The drain hose can be removed by take off screw, after that twisting and pulling. • When removing the drain hose, be careful of any sharp edges of steel plate. The edges can cause injuries. Heat insulator Slit Fig. 8-4-12 <In case of bottom right or bottom left piping> • After scribing slits of the front panel with a knife or a making-off pin, cut them with a pair of nippers or an equivalent tool. Slit Drain hose Fig. 8-4-13 Fig. 8-4-9 – 35 – FILE NO. SVM-09030 <Left-hand connection with piping> 8-4-6. Indoor unit fixing Bend the connecting pipe so that it is laid within 43 mm 1. Pass the pipe through the hole in the wall, and hook above the wall surface. If the connecting pipe is laid the indoor unit on the installation plate at the upper exceeding 43 mm above the wall surface, the indoor hooks. unit may unstably be set on the wall. When bending the 2. Swing the indoor unit to right and left to confirm that connecting pipe, make sure to use a spring bender so it is firmly hooked up on the installation plate. as not to crush the pipe. 3. While pressing the indoor unit onto the wall, hook it at the lower part on the installation plate. Pull the Bend the connection pipe within a radius of 30 mm. indoor unit toward you to confirm that it is firmly To connect the pipe after installation of the unit (figure) hooked up on the installation plate. (To the forefront of flare) 270 mm 230 mm Hook here 1 Gas side 1 Installation plate Liquid side 2 Hook 43 mm Outward form of indoor unit Press (unhook) R 30 mm (Use polisin (polyethylene) core or the like for bending pipe.) 80 Fig. 8-4-15 • For detaching the indoor unit from the installation plate, pull the indoor unit toward you while pushing its bottom up at the specified parts. Use the handle of screwdriver, etc. Fig. 8-4-14 NOTE If the pipe is bent incorrectly, the indoor unit may unstably be set on the wall. After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them. Push Fig. 8-4-16 CAUTION • Bind the auxiliary pipes (two) and connecting cable with facing tape tightly. In case of leftward piping and rear-leftward piping, bind the auxiliary pipes (two) only with facing tape. Indoor unit Auxiliary pipes Push Connecting cable Installation plate • Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit. • Carefully connect the auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound on the connecting pipe to avoid double-taping at the joint, moreover, seal the joint with the vinyl tape, etc. • Since dewing results in a machine trouble, make sure to insulate both the connecting pipes. (Use polyethylene foam as insulating material.) • When bending a pipe, carefully do it, not to crush it. − 36 − FILE NO. SVM-09030 8-4-7. Drainage 8-5. Outdoor Unit 1. Run the drain hose sloped downwards. 8-5-1. Installation place NOTE • Hole should be made at a slight downward slant on the outdoor side. Do not form the drain hose into a wavy shape. Do not rise the drain hose. 50 mm or more Do not put the drain hose end into water. Do not put the drain hose end in the drainage ditch. Fig. 8-4-17 • A place which provides the spaces around the outdoor unit as shown in the left diagram. • A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration. • A place where the operation noise and discharged air do not disturb your neighbors. • A place which is not exposed to a strong wind. • A place free of a leakage of combustible gases. • A place which does not block a passage. • When the outdoor unit is to be installed in an elevated position, be sure to secure its feet. • An allowable length of the connecting pipe is up to 15m • An allowable height level is up to 6m. • A place where the drain water does not raise any problem. 2. Put water in the drain pan and make sure that the water is drained out of doors. 3. When connecting extension drain hose, insulate the connecting part of extension drain hose with shield pipe. Shield pipe Drain hose Inside the room Extension drain hose Fig. 8-4-18 CAUTION Arrange the drain pipe for proper drainage from the unit. Improper drainage can result in dew-dropping. This air conditioner has the structure designed to drain water collected from dew, which forms on the back of the indoor unit, to the drain pan. Therefore, do not store the power cord and other parts at a height above the drain guide. CAUTION 1. Install the outdoor unit without anything blocking the air discharging. 2. When the outdoor unit is installed in a place exposed always exposed to strong wind like a coast or on a high storey of a building, secure the normal fan operation using a duct or a wind shield. 3. In particularly windy areas, install the unit such as to avoid admission of wind. 4. Installation in the following places may result in trouble. Do not install the unit in such places. • A place full of machine oil. • A saline-place such as the coast. • A place full of sulfide gas. • A place where high-frequency waves are likely to be generated as from audio equipment, welders, and medical equipment. Wall Strong wind Drain guide Fig. 8-5-1 Space for pipes Fig. 8-4-19 − 37 − FILE NO. SVM-09030 8-5-2. Refrigerant piping connection (Unit : N· m) 1. Cut the pipe with a pipe cutter. Roughness Obliquity 90° Warp Fig. 8-5-2 Outer dia. of copper pipe Tightening torque ∅6.35 16 to 18 (1.6 to 1.8 kgf·m) ∅9.52 30 to 42 (3.0 to 4.2 kgf·m) ∅12.70 50 to 62 (5.0 to 6.2 kgf·m) • Tightening torque of flare pipe connections 2. Insert a flare nut into the pipe, and flare the pipe. • Projection margin in flaring : A (Unit : mm) Flare at indoor unit side A Die Pipe Fig. 8-5-3 Outer dia. of copper pipe Flare at outdoor unit side Fig. 8-5-4 A Rigid Imperial ∅ 6.35 0.5 to 1.0 1.0 to 1.5 ∅ 9.52 0.5 to 1.0 1.0 to 1.5 ∅ 12.70 0.5 to 1.0 1.5 to 2.0 Mark line <Tightening connection> Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers. Then tighten the nut with a spanner and torque wrench as shown in the figure. Fig. 8-5-5 Half union Flare nut Externally threaded side CAUTION • Do not apply excess torque. • Otherwise, the nut may crack depending on the conditions. Use a wrench to secure. Internally threaded side Use a torque wrench to tighten. Fig. 8-5-6 CAUTION • KEEP IMPORTANT 5 POINTS FOR PIPING WORK (1) Take away dust and moisture (Inside of the connecting pipes.) (2) Tight connection (between pipes and unit) (3) Evacuate the air in the connecting pipes using VACUUM PUMP. (4) Check gas leak (connected points) (5) Be save to fully open the packed valves before operation. − 38 − FILE NO. SVM-09030 8-5-3. Evacuating <Packed valve handling precautions> After the piping has been connected to the indoor unit, you can perform the air purge together at once. · · AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using a vacuum pump. Do not use the refrigerant in the outdoor unit. For details, see the manual of the vacuum pump. <Using a vacuum pump> Be sure to use a vacuum pump with counter-flow prevention function so that inside oil of the pump does not flow backward into pipes of the air conditioner when the pump stops. 1. Connect the charge hose from the manifold valve to the service port of the gas side packed valve. 2. Connect the charge hose to the port of the vacuum pump. 3. Open fully the low pressure side handle of the gauge manifold valve. 4. Operate the vacuum pump to start evacuating. Perform evacuating for about 15 minutes if the piping length is 20 meters. (15 minutes for 20 meters) (assuming a pump capacity of 27 liters per minute.) Then confirm that the compound pressure gauge reading is -101 kPa (76 cmHg). 5. Close the low pressure side valve handle of gauge manifold. 6. Open fully the valve stem of the packed valves (both sides of Gas and Liquid). 7. Remove the charging hose from the service port. 8. Securely tighten the caps on the packed valves. Compound pressure gauge Open the valve stem all the way out; but do not try to open it beyond the stopper. Securely tighten the valve stem cap with torque in the following table: Gas side ( Æ12.70 mm) 50 to 62 N·m (5.0 to 6.2 kgf·m) Gas side (Æ9.52 mm) 30 to 42 N·m (3.0 to 4.2 kgf·m) Liquid side (Æ6.35 mm) 16 to 18 N·m (1.6 to 1.8 kgf·m) Service port 9 to 10 N·m (0.9 to 1.0 kgf·m) Pressure gauge -101 kPa ( 76 cmHg) Manifold valve Handle Hi (Keep full closed) Handle Lo Charge hose Charge hose Connecting pipe Vacuum pump adapter for counter-flow prevention Vacuum pump Packed valve at gas side Service port (Valve core (Setting pin)) Packed valve at liquid side Fig. 8-5-7 - 39 - Hexagonal wrench is required. 4m Fig. 8-5-8 m FILE NO. SVM-09030 8-6. How to Set Remote Control Selector Switch 8-5-4. Wiring connection 1. Remove the valve cover from the outdoor unit. 2. Connect the connecting cable to the terminal as identified with their respective matched numbers on the terminal block of indoor and outdoor unit. 3. When connecting the connecting cable to the outdoor unit terminal, make a loop as shown in the installation diagram of indoor and outdoor unit, to prevent water coming in the outdoor unit. 4. Insulate the unused cords (conductors) from any water coming in the outdoor unit. Proceed them so that they do not touch any electrical or metal parts. <Stripping length of connecting cable> When two indoor units are installed in the seperated rooms. It is not necessary to change the selector switches. <Remote control selector switch> • When two indoor units are installed in the same room or adjacent two rooms, if operating a unit, two units may receive the remote control signal simultaneously and operate. In this case, the operation can be preserved by setting either one indoor unit or remote control to B setting. (Both are set to A setting in factory shipment.) • The remote control signal is not received when the settings of indoor unit and remote control are different. • There is no relation between A setting/B setting and A room/B room when connecting the piping and cables. <Remote control A-B selection> To separate using of remote control for each indoor unit in case of 2 air conditioners are installed nearly. Terminal block 100 mm 10 mm Earth line Terminal screw Screw 10 mm 50 mm Connecting cable Earth line Cord clamp Fig. 8-5-9 CAUTION • Wrong wiring connection may cause some electrical parts burn out. • Be sure to comply with local codes on running the wire from indoor unit to outdoor unit (size of wire and wiring method etc.) • Every wire must be connected firmly. Remote Control B Setup. 1. Press RESET button on the indoor unit to turn the air conditioner ON. 2. Point the remote control at the indoor unit. 3. Push and hold [CHK] button on the Remote Control by the tip of the pencil. "00" will be shown on the display 4. Press [MODE] during pushing [CHK] . "B" will show on the display and "00" will disappear and the air conditioner will turn OFF. The Remote Control B is memorized. NOTE : 1. Repeat above step to reset Remote Control to be A. 2. Remote Control A has not "A" display. 3. Default setting of Remote Control from factory is A. MODE AUTO COOL NOTE • Wire type: H07RN-F or 245 IEC66 (2.0 mm2 or more) DRY AUTO FAN TEMP. B TEMP. – 40 – FAN AUTO QUIET B FILE NO. SVM-09030 8-7. Others 8-7-3. Auto restart setting 8-7-1. Gas leak test This product is designed so that, after a power failure, it can restart automatically in the same operating mode as before the power failure. Check places for the indoor unit. Valve cover Information The product was shipped with Auto Restart function in the off position. Turn it on as required. Electric parts cover <How to set the auto restart> Fig. 8-7-1 Check places for the outdoor unit. • Check the flare nut connections, valve stem cap connections and service port cap connections for gas leak with a leak detector or soap water. • Press and hold the RESET button for about 3 seconds. After 3 seconds, the electronic beeper makes three short beeps to tell you the Auto Restart has been selected. • To cancel the Auto Restart, follow the steps described in the section Auto Restart Function of the Owner’s Manual. 8-7-2. Test operation To switch the TEST RUN (COOL) mode, press RESET button for 10 sec. (The beeper will make a short beep.) Hi POWER FILTER PAP TIMER OPERATION RESET Fig. 8-7-2 – 41 – FILE NO. SVM-09030 9. TROUBLESHOOTING CHART 9-1. Troubleshooting Procedure 9-2-2. Incorrect cable connection between Indoor and outdoor units Follow the details of 9-2. Basic Chec k Items . If there is no trouble corresponding to 9-2, check whether or not there are faulty parts following 9-4. Self-Diagnosis by Remote Control. The indoor unit is connected to the outdoor unit with 5 cables (Heat pump model) or 3 cables (Cooling Only model). Check that the indoor and outdoor units have been properly connected with terminals assigned the same numbers. If the connectors are not properly connected, the outdoor unit will not operate normally, or OPERATION lamp and TIMER lamp will blink (5Hz). 9-2. Basic Check Items 9-2-1. Power supply voltage The line voltage must be AC 220 − 240V. If it is not within this range, the air conditioner may not operate normally. 9-2-3. Program control The microcontroller operates as shown in Table 9-2-1 to control the air conditioner. If there are any operational problems, check whether or not the problems correspond to Table 9-2-1. If they correspond to the Table, they are not problems with the air conditioner, but they are indispensable operations to control and maintain the air conditioner properly. Table 9-2-1 No. Operation of air conditioner Descriptions 1 When the main power supply is turned on, the OPERATION lamp on the indoor unit blinks. The OPERATION lamp blinks to indicate that power is turned on. If the [ ] button is pressed, the lamp stops blinking. 2 The indoor fan motor speed does not change in the Dry operation. The indoor fan motor speed is automatically controlled in the Dry operation. 3 The compressor is not turned off even though The compressor has a function that it is not turned off for the room temperature is in the range that the 3 minutes after it is turned on even though the room temperature compressor is turned off. is in the range that the compressor is turned off. 4 The compressor is not turned on and off even In the Dry operation, the compressor is turned on and off though the thermo control is operated in the automatically at the regular intervals, independent of the thermo Dry operation. control. 5 The PRE-DEF. lamp is indicated when the Heating operation starts. The PRE-DEF. lamp is indicated during the Defrosting operation or if the indoor heat exchanger temperature is low when the Heating operation starts. At this time, the indoor fan motor stops to prevent cold air from blowing in the room. 6 The outdoor fan motor stops in the Heating operation. When the indoor heat exchanger temperature is high, the outdoor fan motor is stopped by the high-temperature limit control operation. 7 The compressor is not turned on even though The compressor is not turned on in the restart delay timer the room temperature is in the range that the (3-minutes timer) operation. It is also not turned on after the power compressor is turned on. supply is turned on because of this timer operation. 8 The operation mode changes in the Automatic operation. In Automatic operation, the room temperature is detected all time for control fan speed and the operation mode is changed every 15 minutes according to difference between the room temperature and the preset temperature. 9 The Fan only operation continues in the Automatic operation. When the room temperature is in the range (Preset temperature ± 1°C), the Fan only operation is selected. 10 The Hi-POWER operation does not work. This operation does not work when the unit is in the Dry operation or Fan only operation. − 42 − FILE NO. SVM-09030 9-3. Primary Judgement 9-3-2. Failure diagnosis 9-3-1. Role of indoor unit controller The indoor unit controller receives the operation commands from the remote control and executes them. • Temperature measurement at the air outlet of the indoor heat exchanger by the indoor temperature sensor • Temperature setting of the indoor heat exchanger by the heat exchanger sensor • Louver motor control • Indoor fan motor operation control • LED display control • Transferring of operation commands to the outdoor unit The indoor unit diagnoses the operation condition and indicates the information of the self-diagnosis with the lamps on the display panel of the indoor unit. Table 9-3-1 Lamps Self-diagnosis A OPERATION lamp is blinking. (1Hz) Power failure (when the power supply is turning on) B OPERATION lamp is blinking. (5Hz) Thermo sensor (TA) short or break C OPERATION lamp is blinking. (5Hz) Heat exchanger sensor (TC) short or break D OPERATION lamp is blinking. (5Hz) Indoor fan motor lock or failure E OPERATION lamp is blinking. (5Hz) Indoor P.C. board failure F OPERATION and TIMER lamps are blinking. (5Hz) Wrong wiring of connecting cable G OPERATION, TIMER and PRE-DEF. (or FAN ONLY for cooling only model) lamps are blinking. Cycle failure • Gas shortage or other refrigerant cycle trouble • Heat exchanger sensor open, break or short • Overload relay or thermostat trouble of compressor Table 9-3-2 Diagnosis by detective operation Symptom The remote control does not work. The outdoor fan does not rotate. Check Primary judgement Turn off the power supply once, The remote control then turn it on. Try to operate still does not work. the remote control. The remote control works. The indoor unit (and/or remote control) is/are defective. The compressor operates. The outdoor unit (Outdoor fan motor) is defective. The compressor does not operate. An internal part of the compressor or PCB is defective. − 43 − OK. FILE NO. SVM-09030 9-4. Self-Diagnosis by Remote Controller (Check Code) 1. If the lamps are indicated as shown B to E in Table 9-3-1, execute the self-diagnosis by the remote controller. 2. When the remote controller is set to the service mode, the indoor controller diagnoses the operation condition and indicates the information of the self-diagnosis on the display of the remote controller with the check codes. If a fault is detected, all lamps on the indoor unit will flash at 5Hz and it will beep for 10 seconds (Beep, Beep, Beep ... ). The timer lamp usually flashes (5Hz) during self-diagnosis. 9-4-1. How to Use Remote Controller in Service Mode 1 Press [CHECK] button with a tip of pencil to set the remote controller to the service mode. • “ ” is indicated on the display of the remote controller. 2 TOSHIBA PR ESET Press [ON ] or [OFF ] button If there is no fault with a code, the indoor unit will beep once (Beep) and the display of the remote controller will change as follows : FAN ••• T E MP ONE -T OUC H TEMP QUIE T S WING MODE • The TIMER indicator of the indoor unit flashes continuously. (5 times per 1 sec.) C OMF OR T SLEEP • Check the unit with all 52 check codes ( as shown in Table-11-4-1. F IX Hi-P OWE R ON OF F • Press [ON ] or [OFF code backward. ECO T IME R CLR SLEEP F IL T E R ) ] button to change the check If there is a fault, the indoor unit will beep for 10 seconds (Beep, Beep, Beep...). SET C HK to Note the check code on the display of the remote controller. C L OC K • 2-digits alphanumeric will be indicated on the display. • All indicators on the indoor unit will flash. (5 times per 1 sec.) 3 Alphanumeric characters are used for the check codes. is 5. is 6. is A. is B. is C. is D. 4 Press [CLR] button. After service finish for clear service code in memory. • "7F" is indicated on the display of the remote control. Press [ ] button to release the service mode. • The display of the remote controller returns to as it was before service mode was engaged. Fig. 9-4-1 – 44 – FILE NO. SVM-09030 Table 9-4-1 Block level Check code Block Indoor P.C. board Diagnosis function Check code Air Conditioner status Symptom Condition Judgement and action Thermo. sensor short/break. Continued operation. Indicated when detected abnormal 1.Check thermo sensor. 2.If it is OK, check P.C. board. Heat exchanger sensor short/break. Continued operation. Indicated when detected abnormal 1.Check heat exchanger sensor. 2.If it is OK, check P.C. board. Indoor fan lock, abnormality of indoor fan or thermal fuse break. All off Indicated when detected abnormal 1.Check heat thermal fuse is blow or not? (Terminal block part.) 2.If the thermal fuse is not blow, check indoor fan motor. (Refer to trouble shooting flow charts.) Abnormality of other All off indoor unit P.C. board. Indicated when detected abnormal Replace P.C. borad. Cable connection/ Thermal fuse Refrigerant system 1) Wrong wiring or All off disconnection of connective cable. 2) Terminal fuse cut off. Indicated when detected abnormal 1.Check connective cable correct if wiring is wrong. 2.Check thermal fuse and Terminal blocks. 3.If it is OK, check P.C. board. Other parts (including compressor) 1) Overload relay or All off thermostat for compressor break. Indicated when detected abnormal 1.If overload relay and themostat for compressor are OK, check refrigerant cycle. 2.If refrigerant cycle is OK, check P.C. board. 3. If heat exchanger sensor is OK, check overload relay and themostat for compressor. Content detected by the check codes " " t o " " are stored in memory of the microcomputer even if the power supply is turned off. Therefore, contents of operations in the past are all displayed. – 45 − FILE NO. SVM-09030 9-5. Troubleshooting Flowcharts 9-5-1. Power can not be turned on (No operation at all) <Preliminary checks> Operation (1) Is the supply voltage normal? (2) Is the connection to the AC output OK.? Check Items Main cause Shut off the power supply from AC outlet once and turn it on after 5 seconds. Countermeasure Symptom NO Does the OPERATION lamp blink? YES Does the power turn on by pushing the [ ] button of the remote control? Does the transmission indicator of remote control flash normally and transmit certainly? NO YES NO YES (No problem) Does the fuse (F01) blow? Remote control is defective. YES Parts (R06, R07, SG01, C01, DB01, C02, C03, M01) are defective. YES Wrong wiring of AC cord or connecting cable is defective. Replace the remote control. NO Does the thermal fuse blow? (Under PF. Terminal) Replace the thermal fuse set. Check connection. NO NO Is the indication voltage (DC12V or 5V) of main P.C. board correct? YES Does the CN14 connector the wrong connecting? Is the voltage Refer to the paragraph NO across C03 measured "Pre-check", or defective circuit DC310V ~ 340V? before power P.C. board block. NO P.C. board is defective. Replace the main P.C. board. YES Re-wiring the cable. YES Is the voltage across C07 measured DC12V? YES NO Shut off the power supply once, and disconnecting the motor connector CN11*. Check Resistance of Pin 1 and 3 of Fan-motor = 162Ω . NO Replace Fan-motor and P.C. board. YES Replace P.C. board * Be sure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of damage of the motor. − 46 − FILE NO. SVM-09030 9-5-2. Power can not be turned on after replacing indoor P.C. board <Checking Procedure> Connect the AC Power supply Does the OPERATION lamp blink? YES NO Is it wired as shown in Figure below? YES NO Return the wiring of the power relay is returned to the normal procedure. To the paragraph of "No Power turns on". – 47 − FILE NO. SVM-09030 9-5-3. Outdoor unit does not operate Shut off the power supply from AC outlet once and turn it on after 5 seconds. Does the OPERATION lamp blink? NO See "Power can not be turned on". YES Does the power turn on by pushing the [ ] button of the remote control? NO See "Power can not be turned on". YES Is AC 220-240V supplied between terminal block 1 - 2 ? NO Relays (RY01) or (Q07) or IC30 is failure. NO Correct cabling between indoor and outdoor units. YES Is cable connection between indoor and outdoor units correct? YES Check items as following procedure in 9-5-4, 9-5-5, 9-5-6 − 48 − Replace the P.C. board. FILE NO. SVM-09030 9-5-4. Only compressor does not operate Shut off the power supply from AC outlet once and turn it on after 5 seconds. Does the OPERATION lamp blink? NO See "Power can not be turned on". YES Does the power turn on by pushing the [ ] button of the remote control? NO See "Power can not be turned on". YES Is the voltage across the indoor terminal ( 1 - 2 ) AC 220-240V? NO Relays (RY01) or (Q07) or IC30 is failure. YES Is cable connection between indoor and outdoor units correct? NO Correct cabling between indoor and outdoor units. NO Cables between indoor and outdoor units are defective. YES Is the voltage across the outdoor terminal ( 1 - 2 ) AC 220-240V? YES Are all the cords for compressor normal? NO Re-wire or replace the defective cords. YES Is the compressor motor winding normal? (Check the winding resistor.) NO Compressor is defective. YES Is the capacitor for compressor normal. NO Capacitor is defective. YES Is the overload relay normal? NO Overload relay is defective. YES Does the compressor start? NO Compressor is defective. YES Compressor starts but it stops after a while? YES Is the gas quantity normal? (Check the pressure) NO Gas shortage (Gas leakage) YES Compressor is defective – 49 − Replace the P.C. board. FILE NO. SVM-09030 9-5-5. Only outdoor fan does not operate Shut off the power supply from AC outlet once and turn it on after 5 seconds. Does the OPERATION lamp blink? NO See "Power can not be turned on". YES Does the power turn on by pushing the [ ] button of the remote control? NO See "Power can not be turned on". YES Is the voltage across the indoor terminal ( 2 - 4 : Heat pump model, 1 - 2 : Cooling only model) AC 220-240V? NO Relays (RY03) or Q09 or IC30 is failure. NO Correct cabling between indoor and outdoor units. NO Cables between indoor and outdoor units are defective. NO Correct the wire or replace the defective cords. YES Is cable connection between indoor and outdoor units correct? YES Is the voltage across the terminal ( 2 - 4 : Heat pump model, 1 - 2 : Cooling only model) AC 220-240V? YES Are all the cords for outdoor fan motor normal? YES Is the outdoor fan motor winding normal? (Check the winding resistance) NO Outdoor fan motor is defective. YES Is the capacitor for compressor normal? YES NO Capacitor for outdoor fan motor is defective. Outdoor fan motor is defective. – 50 − Replace the P.C. board. FILE NO. SVM-09030 9-5-6. Only 4-Way valve does not operate (During heating operation) Shut off the power supply from AC outlet once and turn it on after 5 seconds. Does the OPERATION lamp blink? NO See "Power can not be turned on". YES Does the power turn on by pushing the [ ] button of the remote control? NO See "Power can not be turned on". YES Is the voltage across the indoor terminal ( 2 - 3 ) 220-240V? NO Relays (RY04) or Q08, R34 or IC30 is failure. NO Correct cabling between indoor and outdoor units. NO Cables between indoor and outddor units are defective. YES Is cable connection between indoor and outdoor units correct? YES Is the voltage across the outdoor terminal ( 2 - 3 ) 220-240V? YES Is the wiring of solenoid coil for 4-way valve normal? NO Solenoid coil is defective. YES 4-way valve is defective. – 51 − Replace the P.C. board. FILE NO. SVM-09030 9-5-7. Only the indoor fan does not operate <Check procedure> Shut off the power supply once. Turn the power supply. Does the fan stop in no operating status? NO Replace the P.C. board. Control P.C. board is defective. YES Start the operation with low fan setting in cool operation. Does the fan rotate? NO YES Does AC 120V or higher voltage apply to between red and black lead of fan motor? Does connecting terminal, connecting cable or power supply cord completely? Does not found the short wire about connecting cable and power cord? NO YES YES Shut off the power supply. Change the setting of cooling to high fan. Does the cross flow fan rotate normally? NO NO YES Repair the bearing of the fan. Thermal fuse operated due to prevent temperature rising cause of incompleted connecting. Turn on the power supply. Does the fan speed become higher? NO Motor control circuit failure IC30, IC03 or 12V power circuit failure. Operation stops YES Replace the P.C. board. Is the rotation signal (DC+5V-0V) output between 2 (gray lead wire) and 3 (brown lead wire) of the motor connector (CN11) when rotating the cross flow fan by hand in no operating status? (1 pulse/one turn) NO Replace the fan motor YES Normal Replace connecting the cable (or power cord), thermal fuse and terminal block. Replace the control P.C. board. − 52 − FILE NO. SVM-09030 9-6. Troubleshooting for Remote Control (Including the Indoor P.C. Board) Push the [ There is no been from the indoor unit. The operation lamp of the air conditioner main unit does not light. ] button. Does the transmission indicator blink? NO YES Is there direct sunlight on the receptor of the air conditioner? Reset the remote control by use the tip pencil push in the RESET hole NO YES Is there any thyristor fluorescent light near by? NO Is operation possible when the transmitter is moved nearer to the infrared signal receiver of the air conditioner? NO YES Push the [ button YES ] Battery life NO Dose the transmission indicator light? Is operation possible when setting the temporary switch of the air conditioner main unit to "TEST RUN" or "TEMPORARY AUTO"? NO YES NO YES Is there any beep and operation? YES Can any signal tone be heard in a trasistor radio when transmitting within 5 cm distance from the radio? NO YES Remote control is failure. P.C. board is failure. Avoid direct sunlight. Keep the air conditioner away from thyristor fluorescent light. Replace P.C. board Replace the batteries − 53 − Normal Replace remote control. FILE NO. SVM-09030 (2) Inspection procedres 1) When a P.C. board is judged to be defective, (1) Operating precautions check for disconnection, burning, or discolora1) When removing the front panel or the P.C. board, tion of the copper foil pattern or this P.C. board. be sure to shut off the power supply. 2) The P.C. board consists of the following 2 parts 2) When removing the P.C. board, hold the edge of a. Main P.C. board part: the P.C. board and do not apply force to the power relay, indoor fan motor drive circuit and parts. control circuit, C.P.U. and peripheral circuits, 3) When connecting or disconnecting the connecbuzzer drive circuit and buzzer. tors on the P.C. board, hold the Whole housing. b. Infrared rays receive and indication parts: Do not pull at the lead wire. Infrared rays receiver unit and LED. 9-6-1 How to check the P.C. board − 54 − FILE NO. SVM-09030 (3) Checking procedure Table 9-6-1 No. Procedure Check Point (Symptom) Causes 1 Shut off the power supply and remove the P.C. board assembly from the electronic parts base. Remove the connecting cable from the terminal block. 1. Is the fuse blown? 1. • Application of shock voltage. • Overload by short-circuit of the parts. 2 Remove the connector for the motor, and turn the power on. If the OPERATION lamp blinks (0.5 sec. : ON, 0.5 sec. : OFF) when the power turning on, the checking points described as 1-4 of right column are not necessary to perform. Voltage check 1. Between TP1 and N (AC 220∼240V) 2. Between + and − of C03 (DC 310 ~ 340V) 3. Between 12V and GND 4. Between 5V and GND 1. • AC power cord is defective. • Poor contact of the terminal plate. • Miss wiring of the power relay. 2. • Capacitor (C01, C02) is defective. • Line filter (L01) is defective. • Resistor (R01) is defective. • Diode (DB01) is defective. 3. M01, DB01, R01, C03 are defective. 4. IC01 are defective. 3 Make the operation status by pushing once the [ ] button, except the status of [FAN ONLY], [ON TIMER]. Voltage check 1. Voltage of relay coil. (DC 12V) Between pin 2 of RY01 and GND 2. Between No. 1 and 2 of connecting cable terminal block. (AC 220∼240V) 4 Start the operation with the system which the time of the restart delay timer is shortened. 1. All indicators light for 3 sec.. 2. Indicators do not indicate normally after approximate 3 sec.. 5 Make the operation status by pressing once the [ ] button. 1. The time of the restart delay timer is shortened. 2. Cool operation 3. Air volume [AUTO] 4. Make the setting temperature lower enough than room temperature. 5. Continuous operation. 1. Compressor does not operate. 2. OPERATION lamp blinks. 1. The temperature of the indoor heat exchanger is abnomally lower. 2. Poor contact of the heat exchanger sensor. (The connector is disconnected.) (CN01) 3. Heat exchanger sensor, main P.C. board are defective. (Refer to Table 9-6-2 for the judgment of defective resistance values.) 4. Main P.C. board is defective. 6 The status of No. 5 is continued, and make the following condition. 1. Heat operation 2. Make the setting temperature higher enough than room temperature. 1. Compressor does not operate. 2. OPERATION lamp blinks. 1. The temperature of the heat exchanger is abnormally high. 2. The heat exchanger sensor connector has short-circuit. (CN01) 3. The heat exchanger sensor is defective. (Refer to Table 9-6-2 for the judgment of defective resistance values.) 4. P.C. board is defective. 7 Turn the power on after connecting the motor connector. Start the operation with the following condition. 1. Operation [Cooling] 2. Airflow [High fan] 3. Continuous operation 1. Motor does not rotate. (The key operation is accepted.) 2. The Motor rotates, but it vibrates too much. 1. Poor contact of the motor connector. 2. P.C. board is defective. − 55 − 1. defective relay driver. (Q07) 2. Poor contact of relay. indicator, or poor } Defective housing assembly. (CN14) FILE NO. SVM-09030 Table 9-6-2 Approximate resistance value of thermo sensor (kΩ) Temperature 0°C 10°C 20°C 25°C 30°C Resistance value 33.8 20.35 12.59 10.00 7.99 9-6-3. How to shorten time of restart delay timer 1 2 Press [SET] button while pressing [CHK] hole with a tip of a pencil. Then press [ ] button to transmit the signal to the indoor unit. PRESET FAN TEMP ONE-TOUCH MODE QUIET COMFORT SLEEP SWING FIX Hi-POWER ECO TIMER CLR ON OFF SLEEP SET CHK FILTER CLOCK 9-6-4. How to set/cancel the self cleaning function The self cleaning function is set from a factory. To cancel this function, should keep press the [RESET] button for 20 seconds till can hear the long combination sound and repeat the same procedure when need to set. − 56 − 2 1 FILE NO. SVM-09030 10. HOW TO REPLACE THE MAIN PARTS WARNING • Since high voltages pass through the electrical parts, turn off the power without fail before proceeding with the repairs. Electric shocks may occur if the power plug is not disconnected. • After the repairs have been completed (after the front panel and cabinet have been installed), perform a test run, and check for smoking, unusual sounds and other abnormalities. If this check is omitted, a fire and/or electric shocks may occur. Before proceeding with the test run, install the front panel and cabinet. • Ensure that the following steps are taken when doing repairs on the refrigerating cycle. 1. Do not allow any naked flames in the surrounding area. If a gas stove or other appliance is being used, extinguish the flames before proceeding. If the flames are not extinguished, they may ignite any oil mixed with the refrigerant gas. 2. Do not use welding equipment in an airtight room. Carbon monoxide poisoning may result if the room is not properly ventilated. 3. Do not bring welding equipment near flammable objects. Flames from the equipment may cause the flammable objects to catch fire. • If keeping the power on is absolutely unavoidable while doing a job such as inspecting the circuitry, wear rubber gloves to avoid contact with the live parts. Electric shocks may be received if the live parts are touched. High-voltage circuits are contained inside this unit. Proceed very carefully when conducting checks since directly touching the parts on the control circuit board may result in electric shocks. 10-1. Indoor Unit No. Part name Front panel Procedures Remarks 1) Stop operation of the air conditioner and turn off its main power supply. 2) Open the air inlet grille, push the arm toward the outside, and remove the grille. 3) Remove the left and right air filters. – 57 – FILE NO. SVM-09030 No. Part name Front panel Procedures Remarks 4) Press "PUSH" part under the front panel and remove hooks of the front panel from the installation plate. Installation plate Front panel Press 5) Remove the front panel fixing screws. (2 pcs.) 6) Take off three hooks of panel from rear side. 2 Screws Three hooks <How to assemble the front panel> 1) Press three center positions and two lower center positions of the air outlet, and then hang the hanging hooks (3 pcs.) at the top side of the front panel to the rear plate. 2) Tighten two screws. • Incomplete hanging or incomplete pressing may cause a dewdrops or generation of a fluttering sound. – 58 – FILE NO. SVM-09030 No. Part name Electric parts box assembly Procedures Remarks 1) Follow the procedure up to 3) in above. 2) Remove screw of earth lead attached to the end plate of the evaporator. 3) Remove the lead wire cover, and remove connector for the fan motor and connector for the louver motor from the electric parts box assembly. 4) Pull out TC sensor from sensor holder of the evaporator. 5) Disengage the display unit by simply pushing at the top of the display unit. Electric part box cover TC sensor Earth Screw Fan motor connector 6) Remove the fixing screw that secures the electric parts box assembly, and remove the assembly. Fixing screw Louver motor connector <How to assemble the electric parts box> 1) Hook the top part of the electric parts box assembly onto the claws on the back body, and secure it using the fixing screw. Now attach the display unit. Connect the connectors for the fan motor and louver motor. 2) Secure the grounding wire using the fixing screw. Insert the TC sensor into the sensor holder. * Be absolutely sure to loop the grounding wire and TC sensor leads once at the bottom. – 59 – AC fan motor connector FILE NO. SVM-09030 Remarks No. Part name Procedures Horizontal louver 1) Remove shaft of the horizontal louver from the back body. (First remove the left shaft, and then remove other shafts while sliding the horizontal louver leftward.) Evaporator (Heat exchanger) 1) Follow to the procedure in the item . 2) Remove the pipe holder from the rear side of the main unit. 3) Remove two fixing screws at the left side of the end plate of the heat exchanger. 2 screws 4) Remove one fixing screw on the heat exchage fixing holder to separate the heat exchage from the back body. Heat exchanger fixing holder Screw 5) Remove right side of the end plate from two fixing rib while sliding slightly the heat exchanger rightward. Rib on the right side of the end plate – 60 – FILE NO. SVM-09030 No. Part name Bearing Procedures Remarks 1) Follow to the procedure in the item . 2) Remove the two screws used to secure the bearing base. Two screws 3) Remove the bearing base. <Caution at assembling> • If the bearing is out from the housing, push it into the specified position and then incorporate it in the main body. – 61 – Bearing Bearing base FILE NO. SVM-09030 No. Part name Fan motor Procedures Remarks 1) Follow to the procedure till item . 2) Loosen the set screw of the cross flow fan. 3) Remove two fixing screws of the motor cover and them remove the motor cover. 4) Remove two more fixing screws of the motor band and remove the motor band. Set screw Two Screws Motor cover 5) Pull the fan motor outward. – 62 – Two screws on motor band FILE NO. SVM-09030 No. Part name Procedures Remarks Cross flow fan <Caution at reassembling> 1) To incorporate the fan motor, remove the fan motor rubber (at shaft core side), incorporate the motor into the position in the following figure, and then install the fan motor. • Install the cross flow fan so that the right end of the 1st joint from the right of the cross flow fan is set keeping 70.5 mm from wall of rear plate of the main unit. • Holding the set screw, install the cross flow fan so that U-groove of the fan motor comes to the mounting hole of the set screw. • Perform positioning of the fan motor as follows: • When assembling the fan motor, the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front. • After assembling the two hooking claws of the motor band (right) into the main body, position the fan motor, insert it, and then secure the motor band (right) using the two fixing screws. U groove – 63 – 5 mm FILE NO. SVM-09030 10-2. Outdoor Unit No. 1 Part name Common procedure Procedures 1) Stop the operation of air-conditioner, and disconnect the power cord from the AC supply. 2) Remove packed valve cover and Electric parts cover. (2-Screws ∅4 x 10L) 3) Remove the cord clamp (2-Screws ∅4 x 16L) and disconnect the connecting cable. 4) Remove the upper cabinet (5-Screws ∅4 x 10L) Pulling out upword. 5) Remove the front cabinet. (3-Screws ∅4 x 10L) Pull the front right portion toward you, and remove it pulling out upward. Remarks Cord clamp 2-Screws Ø4 x 16L 2-Screws Ø4 x10L Packed valve cover Upper cabinet Front cabinet 2 3 Capacitor for compressor Capacitor for fan motor 1) Perform the common procedure 1. 2) Remove the fixing screw and the capacitor band. (1-Screw ∅4 x 10L) 3) Disconnect the lead wires. Screws ∅4 x 10L Capacitor band Capacitor for compressor 1) Perform the common procedure 1. 2) Remove the fixing screw and the capacitor band. (1-Screw ∅4 x 10L) 3) Disconnect the lead wires. Screws Ø4 x10L Capacitor for fan motor – 64 – FILE NO. SVM-09030 11. EXPLODED VIEWS AND PARTS LIST 11-1. Indoor Unit (E-Parts Assy) Location Part Location Part No. No. No. No. 401 43T60385 TERMINAL BLOCK ; 2P 406 43T60077 FUSE, TEMPERATURE, 73C 402 43T60365 TERMINAL BLOCK; 3P 407 43T60396 TERMINAL BLOCK; 3P 403 43T69004 SENSOR;HEAT EXCHANGER 410 43T62003 CORD CLAMP 404 43T69005 SENSOR;THERMOSTAT 411 43T69811 PC BOARD 405 43T69641 PC BOARD ASSY; WRS-LED Description - 65 - Description FILE NO. SVM-09030 11-2. Indoor Unit Location Part Location Part No. No. Description Description No. No. 201 43T21397 LOUVER MOTOR 213 43T03364 BACK BODY ASSEMBLY 202 43T21409 FAN MOTOR 214 43T39327 BEARING BASE 203 43T22312 BEARING ASSY, MOLD 215 43T39328 MOTOR BAND (LEFT) 204 43T70313 HOSE, DRAIN 216 43T39329 MOTOR BAND (RIGHT) 205 43T20325 CROSS FLOW FAN ASSEMBLY 217 43T09409 HORIZONTAL LOUVER 206 43T49010 PIPE, SHIELD 218 43T79313 CAP, DRAIN 207 43T83003 HOLDER, REMOTE CONTROL 219 43T44413 REFRIGERANT CYCLE ASSEMBLY 208 43T60382 MOTOR CORD 221 43T00496 PANEL SERVICE ASSEMBLY 209 43T82310 INSTALLATION PLATE 222 43T80318 AIR FILTER (R) 211 43T19333 HOLDER, SENSOR 223 43T80319 AIR FILTER (L) 212 43T09408 PIPE HOLDER 224 43T09416 GRILLE OF AIR INLET - 66 - FILE NO. SVM-09030 11-3. Outdoor Unit Location Part No. No. Description Location Part No. No. Description 1 43T42328 BASE PLATE ASSEMBLY 18 43T19329 FAN GUARD 2 43T41380 COMPRESSOR(Made in China) 19 43T04301 PARTITION 3 43T49008 CUSHION,RUBBER 20 43T39333 MOTOR BASE CONNECTION PLATE 4 43T97001 NUT 21 43T39318 MOTOR BASE 5 43T43383 CONDENSER ASSEMBLY 22 43T19330 PACKED VALVE COVER 6 43T00448 FIXING PLATE VALVE 23 43T00460 UPPER CABINET ASSEMBLY 7 43T46332 VALVE;PACKED 6.35 DIA 24 43T96305 BUSHING 8 43T46335 VALVE;PACKED 12.7 DIA (H4) 25 43T62325 ELECTRIC PART COVER 9 43T47331 BONNET, 6.35 DIA 26 43T19331 FIN GUARD 10 43T47333 BONNET, 12.70 DIA 28 43T61308 ELECTRIC PARTS BASE 11 43T47008 CAPILLARY TUBE; 1.5 DIA 29 43T55350 MF CAPACITOR 12 43T00468 FRONT CABINET 30 43T55325 CAPACITOR; PLASTIC-FILM 13 43T00459 LEFT CABINET 31 43T60373 TERMINAL-4P 14 43T00451 RIGHT CABINET ASSEMBLY 32 43T46337 4 WAY VALVE 15 43T21362 FAN MOTOR(Made in China) 33 43T46339 COIL;V-4WAY;AC220-240V 50Hz 16 43T20319 PROPELLER FAN 34 43T79305 DRAIN NIPPLE 17 43T47001 NUT FLANGE 35 43T47007 CAPILLARY TUBE; 1.2 DIA - 67 - FILE NO. SVM-03004(1) TOSHIBA CARRIER (THAILAND) CO.,LTD. 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND. – 75 –